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Date: Wed, 30 Jan 2013 21:07:13 +0000 (UTC)
From: "Jimmy Xiang (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12629607.1359416752132.217798.1359580033790@arcas>
In-Reply-To: <JIRA.12629607.1359416752132@arcas>
References: <JIRA.12629607.1359416752132@arcas>
Subject: [jira] [Commented] (HBASE-7701) inconsistent state in
 AssignmentManager for moving region
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    [ https://issues.apache.org/jira/browse/HBASE-7701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13566895#comment-13566895 ] 

Jimmy Xiang commented on HBASE-7701:
------------------------------------

They are timed out by SSH.  That's how SSH reassigns them.
                
> inconsistent state in AssignmentManager for moving region
> ---------------------------------------------------------
>
>                 Key: HBASE-7701
>                 URL: https://issues.apache.org/jira/browse/HBASE-7701
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.96.0
>            Reporter: Sergey Shelukhin
>         Attachments: TEST-org.apache.hadoop.hbase.IntegrationTestRebalanceAndKillServersTargeted.xml
>
>
> Closed regions are not removed from assignments. I am not sure if it's a general state problem, or just a small bug; for now, one manifestation is that moved region is ignored by SSH of the target server if target server dies before updating ZK.
> {code}
> 2013-01-22 17:59:00,524 DEBUG [IPC Server handler 3 on 50658] master.AssignmentManager(1475): Sent CLOSE to 10.11.2.92,51231,1358906285048 for region IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb.
> 2013-01-22 17:59:00,997 DEBUG [RS_CLOSE_REGION-10.11.2.92,51231,1358906285048-1] handler.CloseRegionHandler(167): set region closed state in zk successfully for region IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb. sn name: 10.11.2.92,51231,1358906285048
> 2013-01-22 17:59:01,088 INFO  [MASTER_CLOSE_REGION-10.11.2.92,50658,1358906192673-0] master.RegionStates(242): Region {NAME =&gt; &apos;IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb.&apos;, STARTKEY =&gt; &apos;66666660&apos;, ENDKEY =&gt; &apos;7333332c&apos;, ENCODED =&gt; 0200b366bc37c5afd1185f7d487c7dfb,} transitioned from {IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb. state=CLOSED, ts=1358906341087, server=null} to {IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb. state=OFFLINE, ts=1358906341088, server=null}
> 2013-01-22 17:59:01,128 INFO  [MASTER_CLOSE_REGION-10.11.2.92,50658,1358906192673-0] master.AssignmentManager(1596): Assigning region IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb. to 10.11.2.92,50661,1358906192942
> ... (50661 didn't update ZK to OPEN, only OPENING)
> 2013-01-22 17:59:06,605 INFO  [MASTER_SERVER_OPERATIONS-10.11.2.92,50658,1358906192673-2] handler.ServerShutdownHandler(202): Reassigning 7 region(s) that 10.11.2.92,50661,1358906192942 was carrying (skipping 0 regions(s) that are already in transition)
> 2013-01-22 17:59:06,605 DEBUG [MASTER_SERVER_OPERATIONS-10.11.2.92,50658,1358906192673-2] handler.ServerShutdownHandler(219): Skip assigning region IntegrationTestRebalanceAndKillServersTargeted,66666660,1358906196709.0200b366bc37c5afd1185f7d487c7dfb. because it has been opened in 10.11.2.92,51231,1358906285048
> {code}
> Note the server in the last line - the one that has long closed the region.

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